In looking at whether the evidence supported the possibility that one person was responsible for the events of SF-FM-BR-LH, I concluded that it was possible and narrowed the suspect to someone who was a powerful mortal wizard, most likely a woman. The evidence also pointed to an outsider connection. But my theory lacked a motive, unlike the theories for Mavra, Lord Raith, or the Red Court Vampires. So what would the motive be for a powerful mortal wizard connected to the Outsiders to pass out black magic?
Black magic is addictive.
So passing out items which use/allow the use of black magic or teaching black magic will lead to ever increasing amounts of such magic being performed, like a feedback loop.
Black magic makes the person who wields it “mad” or “insane” or just somehow not themselves.
Certain kinds of magic make the barriers between worlds thin.
In GP, the barb wire spell was placed on ghosts drove the ghosts mad. The ghosts being crazy made the barrier between the NN and the mortal world turbulent and thinner, in other words, easier to cross. Ghosts are beings of both the mortal world and the NN. They once lived in the mortal world and can cross back, but build their places of power in the NN and are stronger there.
Compare this to mortals. Mortal magic is necessary to summon Outsiders. Therefore, mortal magic is connected in some way to Outsiders. Like the mad ghosts thinning the barrier between the NN and the mortal world, mortals being driven “mad” while performing black magic would make the barrier turbulent or thin the barrier between the Outsiders and the mortal. In other words, make it easier to for something to cross over from there to here.
The use of certain kinds of magic acts as a beacon for things on the other side.
In PG, we saw how the use of black magic based on fear drew in the fetches from the NN, which feed on or were powered by or were just drawn to fear.
The Outsiders can be drawn in the same way as the fetches. In BR, during the ritual entropy curse, Madge summoned HWWBh stating, “Let our need become the traveller’s road.” Her use of the black magic ritual became a destination point for the Outsider to travel to the mortal world.
So….the point of passing out black magic or teaching it to mortals is to get people performing it and addicted to it so that an ever increasing amount of black magic is being conducted. This will make it easier for Outsiders to cross over and each person will act as a beacon point for the Outsiders to follow.
What do you think?